Re: Can't change brightness on Dell Studio 1749
On 30 Mar 2010, Ustun Kaya wrote:
> Hello folks,
>
> I installed Debian Squeeze on Dell Studio 1749 and I can't change the
> brightness when the OS is up (Fn + F4 - F5 doesn't work). It works
> when the BIOS screen is open, before booting into Debian. xbacklight
> gives the following output:
>
> ustun@Earth:~$ xbacklight -get
> No outputs have backlight property
>
> Any help?
>
> Best,
> Ustun
>
I had a similar problem on my HP laptop. I solved it with the following
(as root):
echo 10 > /sys/devices/virtual/backlight/acpi_video0/brightness
I've put it in /etc/rc.local to save having to enter it manually each
time.
Anthony
--
Anthony Campbell - ac@acampbell.org.uk
Microsoft-free zone - Using Debian GNU/Linux
http://www.acampbell.org.uk - sample my ebooks at
http://www.smashwords.com/profile/view/acampbell
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